hw/usb.h

   1 /*
   2  * QEMU USB API
   3  *
   4  * Copyright (c) 2005 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24
  25 #include "block.h"
  26
  27 #define USB_TOKEN_SETUP 0x2d
  28 #define USB_TOKEN_IN    0x69 /* device -> host */
  29 #define USB_TOKEN_OUT   0xe1 /* host -> device */
  30
  31 /* specific usb messages, also sent in the 'pid' parameter */
  32 #define USB_MSG_ATTACH   0x100
  33 #define USB_MSG_DETACH   0x101
  34 #define USB_MSG_RESET    0x102
  35
  36 #define USB_RET_NODEV  (-1)
  37 #define USB_RET_NAK    (-2)
  38 #define USB_RET_STALL  (-3)
  39 #define USB_RET_BABBLE (-4)
  40 #define USB_RET_ASYNC  (-5)
  41
  42 #define USB_SPEED_LOW   0
  43 #define USB_SPEED_FULL  1
  44 #define USB_SPEED_HIGH  2
  45
  46 #define USB_STATE_NOTATTACHED 0
  47 #define USB_STATE_ATTACHED    1
  48 //#define USB_STATE_POWERED     2
  49 #define USB_STATE_DEFAULT     3
  50 //#define USB_STATE_ADDRESS     4
  51 //#define       USB_STATE_CONFIGURED  5
  52 #define USB_STATE_SUSPENDED   6
  53
  54 #define USB_CLASS_AUDIO                 1
  55 #define USB_CLASS_COMM                  2
  56 #define USB_CLASS_HID                   3
  57 #define USB_CLASS_PHYSICAL              5
  58 #define USB_CLASS_STILL_IMAGE           6
  59 #define USB_CLASS_PRINTER               7
  60 #define USB_CLASS_MASS_STORAGE          8
  61 #define USB_CLASS_HUB                   9
  62 #define USB_CLASS_CDC_DATA              0x0a
  63 #define USB_CLASS_CSCID                 0x0b
  64 #define USB_CLASS_CONTENT_SEC           0x0d
  65 #define USB_CLASS_APP_SPEC              0xfe
  66 #define USB_CLASS_VENDOR_SPEC           0xff
  67
  68 #define USB_DIR_OUT                     0
  69 #define USB_DIR_IN                      0x80
  70
  71 #define USB_TYPE_MASK                   (0x03 << 5)
  72 #define USB_TYPE_STANDARD               (0x00 << 5)
  73 #define USB_TYPE_CLASS                  (0x01 << 5)
  74 #define USB_TYPE_VENDOR                 (0x02 << 5)
  75 #define USB_TYPE_RESERVED               (0x03 << 5)
  76
  77 #define USB_RECIP_MASK                  0x1f
  78 #define USB_RECIP_DEVICE                0x00
  79 #define USB_RECIP_INTERFACE             0x01
  80 #define USB_RECIP_ENDPOINT              0x02
  81 #define USB_RECIP_OTHER                 0x03
  82
  83 #define DeviceRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
  84 #define DeviceOutRequest ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_DEVICE)<<8)
  85 #define InterfaceRequest \
  86         ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
  87 #define InterfaceOutRequest \
  88         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_INTERFACE)<<8)
  89 #define EndpointRequest ((USB_DIR_IN|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
  90 #define EndpointOutRequest \
  91         ((USB_DIR_OUT|USB_TYPE_STANDARD|USB_RECIP_ENDPOINT)<<8)
  92
  93 #define USB_REQ_GET_STATUS              0x00
  94 #define USB_REQ_CLEAR_FEATURE           0x01
  95 #define USB_REQ_SET_FEATURE             0x03
  96 #define USB_REQ_SET_ADDRESS             0x05
  97 #define USB_REQ_GET_DESCRIPTOR          0x06
  98 #define USB_REQ_SET_DESCRIPTOR          0x07
  99 #define USB_REQ_GET_CONFIGURATION       0x08
 100 #define USB_REQ_SET_CONFIGURATION       0x09
 101 #define USB_REQ_GET_INTERFACE           0x0A
 102 #define USB_REQ_SET_INTERFACE           0x0B
 103 #define USB_REQ_SYNCH_FRAME             0x0C
 104
 105 #define USB_DEVICE_SELF_POWERED         0
 106 #define USB_DEVICE_REMOTE_WAKEUP        1
 107
 108 #define USB_DT_DEVICE                   0x01
 109 #define USB_DT_CONFIG                   0x02
 110 #define USB_DT_STRING                   0x03
 111 #define USB_DT_INTERFACE                0x04
 112 #define USB_DT_ENDPOINT                 0x05
 113
 114 #define USB_ENDPOINT_XFER_CONTROL       0
 115 #define USB_ENDPOINT_XFER_ISOC          1
 116 #define USB_ENDPOINT_XFER_BULK          2
 117 #define USB_ENDPOINT_XFER_INT           3
 118
 119 typedef struct USBPort USBPort;
 120 typedef struct USBDevice USBDevice;
 121 typedef struct USBPacket USBPacket;
 122
 123 /* definition of a USB device */
 124 struct USBDevice {
 125     void *opaque;
 126
 127     /*
 128      * Process USB packet.
 129      * Called by the HC (Host Controller).
 130      *
 131      * Returns length of the transaction
 132      * or one of the USB_RET_XXX codes.
 133      */
 134     int (*handle_packet)(USBDevice *dev, USBPacket *p);
 135
 136     /*
 137      * Called when device is destroyed.
 138      */
 139     void (*handle_destroy)(USBDevice *dev);
 140
 141     int speed;
 142
 143     /* The following fields are used by the generic USB device
 144        layer. They are here just to avoid creating a new structure
 145        for them. */
 146
 147     /*
 148      * Reset the device
 149      */
 150     void (*handle_reset)(USBDevice *dev);
 151
 152     /*
 153      * Process control request.
 154      * Called from handle_packet().
 155      *
 156      * Returns length or one of the USB_RET_ codes.
 157      */
 158     int (*handle_control)(USBDevice *dev, int request, int value,
 159                           int index, int length, uint8_t *data);
 160
 161     /*
 162      * Process data transfers (both BULK and ISOC).
 163      * Called from handle_packet().
 164      *
 165      * Returns length or one of the USB_RET_ codes.
 166      */
 167     int (*handle_data)(USBDevice *dev, USBPacket *p);
 168
 169     uint8_t addr;
 170     char devname[32];
 171
 172     int state;
 173     uint8_t setup_buf[8];
 174     uint8_t data_buf[1024];
 175     int remote_wakeup;
 176     int setup_state;
 177     int setup_len;
 178     int setup_index;
 179 };
 180
 181 typedef void (*usb_attachfn)(USBPort *port, USBDevice *dev);
 182
 183 /* USB port on which a device can be connected */
 184 struct USBPort {
 185     USBDevice *dev;
 186     usb_attachfn attach;
 187     void *opaque;
 188     int index; /* internal port index, may be used with the opaque */
 189     struct USBPort *next; /* Used internally by qemu.  */
 190 };
 191
 192 typedef void USBCallback(USBPacket * packet, void *opaque);
 193
 194 /* Structure used to hold information about an active USB packet.  */
 195 struct USBPacket {
 196     /* Data fields for use by the driver.  */
 197     int pid;
 198     uint8_t devaddr;
 199     uint8_t devep;
 200     uint8_t *data;
 201     int len;
 202     /* Internal use by the USB layer.  */
 203     USBCallback *complete_cb;
 204     void *complete_opaque;
 205     USBCallback *cancel_cb;
 206     void *cancel_opaque;
 207 };
 208
 209 /* Defer completion of a USB packet.  The hadle_packet routine should then
 210    return USB_RET_ASYNC.  Packets that complete immediately (before
 211    handle_packet returns) should not call this method.  */
 212 static inline void usb_defer_packet(USBPacket *p, USBCallback *cancel,
 213                                     void * opaque)
 214 {
 215     p->cancel_cb = cancel;
 216     p->cancel_opaque = opaque;
 217 }
 218
 219 /* Notify the controller that an async packet is complete.  This should only
 220    be called for packets previously deferred with usb_defer_packet, and
 221    should never be called from within handle_packet.  */
 222 static inline void usb_packet_complete(USBPacket *p)
 223 {
 224     p->complete_cb(p, p->complete_opaque);
 225 }
 226
 227 /* Cancel an active packet.  The packed must have been deferred with
 228    usb_defer_packet,  and not yet completed.  */
 229 static inline void usb_cancel_packet(USBPacket * p)
 230 {
 231     p->cancel_cb(p, p->cancel_opaque);
 232 }
 233
 234 int usb_device_add_dev(USBDevice *dev);
 235 int usb_device_del_addr(int bus_num, int addr);
 236 void usb_attach(USBPort *port, USBDevice *dev);
 237 int usb_generic_handle_packet(USBDevice *s, USBPacket *p);
 238 int set_usb_string(uint8_t *buf, const char *str);
 239 void usb_send_msg(USBDevice *dev, int msg);
 240
 241 /* usb hub */
 242 USBDevice *usb_hub_init(int nb_ports);
 243
 244 /* usb-linux.c */
 245 USBDevice *usb_host_device_open(const char *devname);
 246 int usb_host_device_close(const char *devname);
 247 void usb_host_info(void);
 248
 249 /* usb-hid.c */
 250 USBDevice *usb_mouse_init(void);
 251 USBDevice *usb_tablet_init(void);
 252 USBDevice *usb_keyboard_init(void);
 253 void usb_hid_datain_cb(USBDevice *dev, void *opaque, void (*datain)(void *));
 254
 255 /* usb-msd.c */
 256 USBDevice *usb_msd_init(const char *filename, BlockDriverState **pbs);
 257
 258 /* usb-net.c */
 259 USBDevice *usb_net_init(NICInfo *nd);
 260
 261 /* usb-bt.c */
 262 USBDevice *usb_bt_init(HCIInfo *hci);
 263
 264 /* usb-wacom.c */
 265 USBDevice *usb_wacom_init(void);
 266
 267 /* usb-serial.c */
 268 USBDevice *usb_serial_init(const char *filename);
 269
 270 /* usb ports of the VM */
 271
 272 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
 273                             usb_attachfn attach);
 274
 275 #define VM_USB_HUB_SIZE 8
 276
 277 /* usb-musb.c */
 278 enum musb_irq_source_e {
 279     musb_irq_suspend = 0,
 280     musb_irq_resume,
 281     musb_irq_rst_babble,
 282     musb_irq_sof,
 283     musb_irq_connect,
 284     musb_irq_disconnect,
 285     musb_irq_vbus_request,
 286     musb_irq_vbus_error,
 287     musb_irq_rx,
 288     musb_irq_tx,
 289     musb_set_vbus,
 290     musb_set_session,
 291     __musb_irq_max,
 292 };
 293
 294 struct musb_s;
 295 struct musb_s *musb_init(qemu_irq *irqs);
 296 uint32_t musb_core_intr_get(struct musb_s *s);
 297 void musb_core_intr_clear(struct musb_s *s, uint32_t mask);
 298 void musb_set_size(struct musb_s *s, int epnum, int size, int is_tx);